代码简介：动感伸缩、关闭的JS+CSS菜单，配合黑色的背景，看上去很酷，有点像jQuery插件打造的效果，但它却是JavaSCript+CSS实现的哦。
代码内容：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>很是动感的一款js伸缩、关闭菜单_网页代码站(www.webdm.cn)</title>
<script type=text/javascript>
function $(d){
return document.getElementById(d);
}
function dsp(d,v){
if(v==undefined){
return d.style.display;
}else{
d.style.display=v;
}
}
function sh(d,v){
if(v==undefined){
if(dsp(d)!='none'&& dsp(d)!=''){
return d.offsetHeight;
}
viz = d.style.visibility;
d.style.visibility = 'hidden';
o = dsp(d);
dsp(d,'block');
r = parseInt(d.offsetHeight);
dsp(d,o);
d.style.visibility = viz;
return r;
}else{
d.style.height=v;
}
}
s=7;
t=10;
function ct(d){
d = $(d);
if(sh(d)>0){
v = Math.round(sh(d)/d.s);
v = (v<1) ? 1 :v ;
v = (sh(d)-v);
sh(d,v+'px');
d.style.opacity = (v/d.maxh);
d.style.filter= 'alpha(opacity='+(v*100/d.maxh)+');';
}else{
sh(d,0);
dsp(d,'none');
clearInterval(d.t);
}
}
function et(d){
d = $(d);
if(sh(d)<d.maxh){
v = Math.round((d.maxh-sh(d))/d.s);
v = (v<1) ? 1 :v ;
v = (sh(d)+v);
sh(d,v+'px');
d.style.opacity = (v/d.maxh);
d.style.filter= 'alpha(opacity='+(v*100/d.maxh)+');';
}else{
sh(d,d.maxh);
clearInterval(d.t);
}
}
function cl(d){
if(dsp(d)=='block'){
clearInterval(d.t);
d.t=setInterval('ct("'+d.id+'")',t);
}
}
function ex(d){
if(dsp(d)=='none'){
dsp(d,'block');
d.style.height='0px';
clearInterval(d.t);
d.t=setInterval('et("'+d.id+'")',t);
}
}
function cc(n,v){
s=n.className.split(/\s+/);
for(p=0;p<s.length;p++){
if(s[p]==v+n.tc){
s.splice(p,1);
n.className=s.join(' ');
break;
}
}
}
function Accordian(d,s,tc){
l=$(d).getElementsByTagName('div');
c=[];
for(i=0;i<l.length;i++){
h=l[i].id;
if(h.substr(h.indexOf('-')+1,h.length)=='content'){c.push(h);}
}
sel=null;
for(i=0;i<l.length;i++){
h=l[i].id;
if(h.substr(h.indexOf('-')+1,h.length)=='header'){
d=$(h.substr(0,h.indexOf('-'))+'-content');
d.style.display='none';
d.style.overflow='hidden';
d.maxh =sh(d);
d.s=(s==undefined)? 7 : s;
h=$(h);
h.tc=tc;
h.c=c;
h.onclick = function(){
for(i=0;i<this.c.length;i++){
cn=this.c[i];
n=cn.substr(0,cn.indexOf('-'));
if((n+'-header')==this.id){
ex($(n+'-content'));
n=$(n+'-header');
cc(n,'__');
n.className=n.className+' '+n.tc;
}else{
cl($(n+'-content'));
cc($(n+'-header'),'');
}
}
}
if(h.className.match(/selected+/)!=undefined){ sel=h;}
}
}
if(sel!=undefined){sel.onClick();}
}
</script>
<style type="text/css">
<!--
body{
font-size: 12px;
color: #999999;
background-color: #000000;
font-family: Arial, Helvetica, sans-serif;
text-transform: capitalize;
}
* {
margin: 0px;
padding: 0px;
border: 0px;list-style:none;}
#basic-accordian{
width:20%;
z-index:2;
margin-top: 2%;
border-top-style: solid;
border-top-color: #999999;
border-bottom-style: solid;
border-bottom-color: #666666;
padding-top: 15px;
padding-bottom: 15px;
margin-bottom: 2%;
}/*菜单背景*/
.accordion_headings{
padding:2px;
color:#FFFFFF;
cursor:pointer;
font-weight:bold;
font-size: 14px;
line-height: 25px;
letter-spacing: 1px;
}/*菜单分类行*/
.accordion_headings:hover{
}
.accordion_child{
padding-left: 20px;
padding-bottom: 8px;
}
.accordion_child ul{}
.accordion_child ul li{
font-size: 12px;
display: block;
line-height: 20px;
display:block;
}
.accordion_child ul li a{
text-decoration: none;
color: #666666;
}
.accordion_child ul li a:hover{
color: #FFFFFF;
}
.header_highlight{
background-color: #000000;
color: #FF0099;
}/*当前显示菜单分类样式*/
/*菜单样式结束*/
.main {
margin-top: 2%;
width: 96%;
margin-right: auto;
margin-left: auto;
}
-->
</style>
</head>
<body onload="new Accordian('basic-accordian',5,'header_highlight');">
<div class="main">
<div id="basic-accordian" ><!--菜单开始-->
<div id="test-header" class="accordion_headings" >网页代码站</div>
<div id="test-content">
<div class="accordion_child">
<ul><li><a href="/">网页特效</a></li>
<li><a href="http://www.webdm.cn">最新源码</a></li>
</ul>
</div>
</div>
<div id="test1-header" class="accordion_headings" >网页特效</div>
<div id="test1-content">
<div class="accordion_child">
<ul><li><a href="//www.webdm.cn">CSS布局</a></li>
<li><a href="http://www.webdm.cn">菜单导航</a></li>
<li><a href="/">滑动门</a></li>
</ul>
</div></div>
<div id="test7-header" class="accordion_headings" >ASP源代码</div>
<div id="test7-content">
<div class="accordion_child">
<ul>
<li><a href="http:">论坛社区</a></li>
<li><a href="/">新闻文章</a></li>
<li><a href="/">聊天留言</a></li>
</ul>
</div></div>
<div id="test8-header" class="accordion_headings" >客服中心</div>
<div id="test8-content">
<div class="accordion_child">
<ul>
<li><a href="http://www.webdm.cn">常见问题</a></li>
<li><a href="/">在线留言</a></li>
<li><a href="http://www.webdm.cn">联系我们</a></li>
</ul>
</div></div>
</div><!--菜单结束-->
</div><!--main结束-->
</body>
</html>
<br>
<p><a href="http://www.webdm.cn">网页代码站</a> - 最专业的代码下载网站 - 致力为中国站长提供有质量的代码！</p>
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